100 



MOKMYRID.F. 



between dorsal and anal, 8 round caudal peduncle. Dark brown, with 

 two lighter vertical bars between dorsal and anal. 



Total length 230 millim. 



Niger, Old Calabar, Cameroon, Congo. 



Dr. W. J. Ansovge (C.)- 

 Dr. A. Giinther (P.). 

 Rev. J. H. Weeks ( P.). 

 Rev. W. H. Bentley (C). 

 M. De Meuse (C). 

 Capt. Royaux (C). 



1-2. Yg. 





Ogiita, Lower Niger. 



3. Hor., ty 



pe. 



Old Calabar. 



4-6. Ad. & 



yg- 



Monsembe, Upper Congo 



7-8. Ad. 





Stanley Falls. 



9. Ad. 





.. 



0. Yg. 





Banzyville, Ubanglii. 



5. GNATHONEMUS LONG1B ARRIS. 



Mormyrus petersii (non Glintli. 1802), Giinth. Petherick s Trav. ii. p. 25G (18G9). 

 Mormyrus longibarftis, Hilgend. Sitzb. Ges. nat. Fr. Berlin, 1888, p. 78. 

 Gnalhonemus lonpibarbis, Bonleng. Proc. Zool. Soc. 1898, p. 802 ; Pappenh. Mitth. 



Zool. Mus. Berl. iii. 1907, p. 25(5, pi. xii. fig. 1 ; Bonleng. Fish. Nile, p. 55, 



fig., pi. x. fig. 2 (1907). 



Depth of body 4 to 4|- times in total length, length of head 4^- to A\ 

 times. Head longer than deep, with feebly curved upper profile ; snout 

 about | length of postocular part of head, 2^ to 2\ times diameter of 

 eye, about J interorbital width ; chin with a long, cylindrical, pointed 



Ym. SO. 





Bmammgnfsmnm 



Gnathoftemvs longiharbis. 

 Buganga (F. N.). f . 



dermal appendage, as long as or a little longer than snout, directed 

 forwards ; teeth small, notched, 3 or 5 in upper jaw, 4 or 6 in lower. 

 Dorsal 22-25, its length about \ or § its distance from head and equal 

 to or a little greater than its distance from caudal. Anal 28-31, 

 originating a little in advance of dorsal, its distance from ventral a little 



